Entered from booking ledger and New York Times concert listing and review. “Arts and Leisure Guide.” New York Times [New York, N.Y., United States], 15 June 1975, p. D3. Arts & Leisure. Henahan, Donal. “Music: Schubert Rarity.” New York Times [New York, N.Y., United States], 19 June 1975, p. 28.